Hi.  I've enjoyed the IKEA discussion, but what you have is similar to the
sets of white enamelware plates and cups we found spilled out of a
steamboat wreck as part of several acres of wreckage at 3CT243, West
Memphis, AR, on the bottom of the Mississippi River in 1988.  Our vessels
(dishes that is) had a blue line around the rim, and "Sweden" in blue on
the base.  No "KEA", though.  My best estimate for the wreckage is
1915-1925 based on marks on ceramics that also spilled out.  Check the
repro Kresge Katalog of 1913 (published by Random House, NY, 1975 ISBN
0-394-73151-4pbk), page 107.  "Genuine Swedish White Enamelware at 10
cents".  Many vessel forms are illustrated, though no indication of "KEA"
marks.

At 10:56 AM 11/18/1999 -0800, you wrote:
>    Listers,     """"""" below. We've not found any  references that
>discuss enamelware base marks, Swedish or otherwise. Any  hints?   Thanks,
> Anne Stoll Statistical Research,  Inc. (909) 335-1896
Leslie C. "Skip" Stewart-Abernathy
Arkansas Archeological Survey